Split consumption in IS-U based on EDM synthetic profile

we have a requirement to split actual consumption of an installation into time intervals based on syntetic profile in EDM. Example - the overall period consumption is 1000 kWh for period of 15.10.2015 - 15.10.2016 (data from meter reading). Now we need the consumption for the following periods:

15.10.2015 - 31.10.2015

01.11.2015 - 30.11.2015

...

01.09.2016 - 30.09.2016

01.10.2016 - 15.10.2016

The split should reflect the synthetic profile values. The resulting value of course must still be 1000 kWh.

There is a standard function module ISU_S_LPASS_GET_CONSUMPTION which can predict the consumption for a given period in the future. Can this function module be used for actual values? Is there any other option to do this?